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https://issues.apache.org/jira/browse/HBASE-1784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12748195#action_12748195
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ryan rawson commented on HBASE-1784:
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so a slow split opens us up a race condition with the META scanner, good find.
any thoughts on why the split is so slow? it should be fast?
I call this another vote for cutting the master out of the split loop.
> Missing rows after medium intensity insert
> ------------------------------------------
>
> Key: HBASE-1784
> URL: https://issues.apache.org/jira/browse/HBASE-1784
> Project: Hadoop HBase
> Issue Type: Bug
> Affects Versions: 0.20.0
> Reporter: Jean-Daniel Cryans
> Priority: Blocker
> Attachments: DataLoad.java, double-assignment, HBASE-1784.log,
> processSplitRegion-check-regionIsOpening.patch
>
>
> This bug was uncovered by Mathias in his mail "Issue on data load with
> 0.20.0-rc2". Basically, somehow, after a medium intensity insert a lot of
> rows goes missing. Easy way to reproduce : PE. Doing a PE scan or randomRead
> afterwards won't uncover anything since it doesn't bother about null rows.
> Simply do a count in the shell, easy to test (I changed my scanner caching in
> the shell to do it faster).
> I tested some light insertions with force flush/compact/split in the shell
> and it doesn't break.
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